一维有源相扫搜索雷达角度修正

Angle Correction of One-dimensional Active Phased Scanning Search Radar

本文对俯仰一维有源相扫串馈形式阵列雷达测角误差来源进行了分析。由于色散角、雷达倾斜角的存在,如果处理不当就会给雷达方位、俯仰测角带来一定误差。本文对不同色散角、不同倾斜角情况下的雷达方位、俯仰进行了推导,得出了雷达方位、雷达俯仰随色散角、倾斜角的变化公式。并对雷达旋转90度垂直安装在转台上的测试方法进行了分析,给出了转台方位转动角度和目标俯仰角度的关系。推导出的角度修正算法在雷达产品上进行了验证,达到了理想的效果。

Origin of one dimensional active phased scanning series feed array radar angle measurement error is analyzed.Due to existence of dispersion angle and radar antenna tilt angle,some error for radar azimuth and elevation angle measurement would be caused if dispersion angle and radar antenna tilt angle is not processed well.Radar azimuth and elevation is deduced in condition of different dispersion angle and tilt angle to obtain formula of radar azimuth and elevation as change of dispersion angle and tilt angle.Test method on radar antenna installed on turntable by antenna rotating 90°vertically,and relation on turntable rotating angle with target elevation is given.The deduced angle correction algorithm is verified on a radar product,and ideal effect is achieved.